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The Fundamentals of Metalworking (PDF)

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Recrystallised grain size and prior plastic strain<br />

Recrystallised grain size, mm<br />

10<br />

5<br />

Critical<br />

deformation<br />

Aluminium sheet<br />

5 10 15 20<br />

Plastic deformation, %<br />

<strong>The</strong> greater the driving force (greater prior plastic deformation),<br />

the greater the number <strong>of</strong> nuclei that will form and the finer will<br />

be the final grain size.<br />

Suranaree University <strong>of</strong> Technology Tapany Udomphol<br />

Jan-Mar 2007<br />

25

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